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[1]黄 峰,舒绍明,刘翎玥,等.氧化铟纳米纤维的制备及其甲醛气敏性能[J].武汉工程大学学报,2016,38(06):538-543.[doi:10. 3969/j. issn. 1674-2869. 2016. 06. 005]
 HUANG Feng,SHU Shaoming,LIU Lingyue,et al.Fabrication of In2O3 Nanofibers and Their Formaldehyde Sensing Properties[J].Journal of Wuhan Institute of Technology,2016,38(06):538-543.[doi:10. 3969/j. issn. 1674-2869. 2016. 06. 005]
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氧化铟纳米纤维的制备及其甲醛气敏性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
38
期数:
2016年06期
页码:
538-543
栏目:
材料科学与工程
出版日期:
2016-12-15

文章信息/Info

Title:
Fabrication of In2O3 Nanofibers and Their Formaldehyde Sensing Properties
作者:
黄 峰12舒绍明12刘翎玥12刘善堂12*
1. 武汉工程大学化学与环境工程学院, 湖北 武汉 430074; 2. 绿色化工过程教育部重点实验室(武汉工程大学),湖北 武汉 430074
Author(s):
HUANG Feng12 SHU Shaoming 12 LIU Lingyue 12 LIU Shantang 12*
1.School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China; 2. Key Laboratory of Green Chemical Process (Wuhan Institute of Technology) , Ministry of Education , Wuhan 430074, China
关键词:
纳米纤维氧化铟甲醛气敏传感器气敏性能选择性
Keywords:
nanofibers In2O3 formaldehyde gas sensor sensing properties selectivity
分类号:
TQ132.4;R318.08
DOI:
10. 3969/j. issn. 1674-2869. 2016. 06. 005
文献标志码:
A
摘要:
采用静电纺丝法和随后的热处理过程制备了新颖的氧化铟纳米纤维材料. 利用扫描电子显微镜,透射电子显微镜,X射线衍射等表征手段对该材料形貌和晶体结构进行表征. 结果表明,所得到的纳米纤维材料的直径约为250 nm~300 nm. 这些纳米纤维由氧化铟纳米颗粒组成,而且其颗粒尺寸均一. 将这种纳米纤维材料制备成气敏传感器,研究表明基于该敏感材料的传感器对甲醛具有优异的气敏性能. 氧化铟纳米纤维传感器具有较低的最佳工作温度 200 ℃,并且对低体积浓度为百万分之五的甲醛气体具有2.1的灵敏度响应值. 在探讨甲醛的气敏机理的过程中,认为氧化铟纳米纤维的一维结构、甲醛的高还原性及敏感材料表面吸附氧促使了该材料对甲醛的优异的气敏性能. 此外,通过对传感器的选择性及稳定性测试,传感器对甲醛具有非常好的选择性和稳定性,这为制备高性能的甲醛传感器开拓了一种优异的气敏材料.
Abstract:
The novel In2O3 nanofibers were prepared via electrospinning method combined with a subsequent thermal process. The morphology and crystalline of the as-prepared products were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results indicate that these nanofibers have diameters in the ranges of 250 nm-300 nm and are composed of numerous tiny In2O3 nanoparticles with good uniform size. The In2O3 nanofibers-based sensor has excellent sensing properties towards formaldehyde. The results demonstrate that the optimum working temperature of In2O3 nanofibers-based sensor is 200 ℃ and it exhibits a response of 2.1 to 5 percent per million formaldehyde. After investigating the sensing mechanism of the sensor, the great sensing properties of the sensor can be attributed to the one-dimensional structure of nanofiber, the reduction properties of formaldehyde and the surface adsorption oxygen of the material. Moreover, the sensor based on In2O3 nanofibers displays good stability and selectivity to formaldehyde, which brings a promising future for designing superior formaldehyde gas sensors.

参考文献/References:

[1] 刘如征,全宝富,刘凤敏,等. In2O3基甲醛传感器的研制[J]. 电子元件与材料,2006, 25(11): 15-19. LIU R Z, QUAN B F, LIU F M, et al. Reseach on In2O3-based formaldehyde sensor [J]. Electronic components & materials, 2006, 25(11): 15-19. [2] ChOI K I, KIM H R, LEE J H. Enhanced CO sensing characteristics of hierarchical and hollow In2O3 microspheres[J]. Sensors and actuators B: chemical, 2009, 138: 497-503. [3] SINGH N, GUPTAR K, LEE P S. Gold-nanoparticle- functionalized In2O3 nanowires as CO gas sensors with a significant enhancement in response[J]. ACS applied materials & interfaces, 2011,3(7): 2246-2252. [4] LIANG X, KIM T-H, YOON J-W, et al. Ultrasensitive and ultraselective detection of H2S using electrospun CuO-loaded In2O3 nanofiber sensors assisted by pulse heating[J]. Sensors and actuators B: chemical ,2015, 209: 934-942. [5] ZHENG W, LU X, WANG W, et al. A highly sensitive and fast-responding sensor based on electrospun In2O3 nanofibers[J]. Sensors and actuators B: chemical, 2009, 142: 61-65. [6] LI X, LIU J, GUO H, et al. Au@In2O3core-shell composites: a metal-semiconductor heterostructure for gas sensing applications[J]. RSC advances, 2015(5): 545-551. [7] WANG S, XIAO B, YANG T, et al. Enhanced HCHO gas sensing properties by Ag-loaded sunflower-like In2O3 hierarchical nanostructures[J]. Journal of materials chemistry A, 2014, 2(18): 6598-6604. [8] GAO L, CHENG Z, XIANG Q, et al. Porous corundum-type In2O3 nanosheets: synthesis and NO2 sensing properties[J]. Sensors and actuators B: chemical, 2015, 208: 436-443. [9] SONG P, HAN D, ZHANG H, et al. Hydrothermal synthesis of porous In2O3 nanospheres with superior ethanol sensing properties[J]. Sensors and actuators B: chemical, 2014, 196: 434-439. [10] 万其进,舒好,尚艳丽,等. 静电纺丝法制备聚苯胺/醋酸纤维素膜修饰电极[J]. 武汉工程大学学报,2013, 35(4):21-25. WAN Q J, SHU H, SHANG Y L, et al. Preparation of PANI/CA film modified electrode by electrospinning and its application in biosensor[J]. Journal of Wuhan institute of technology, 2013, 35(4):21-25. [11] HOU D F, LUO W, HUANG Y H, et al. Synthesis of porous Bi4Ti3O12 nanofibers by electrospinning and their enhanced visible-light-driven photocatalytic properties[J]. Nanoscale, 2013, 5: 2028-2035. [12] YANG W, WAN P, ZHOU X D, et al. Self-assembled In2O3 truncated octahedron string and its sensing properties for formaldehyde[J]. Sensors and actuators B: chemical ,2014, 201: 228-233. [13] GONG F L, LIU H Z, LIU C Y, et al. 3D hierarchical In2O3 nanoarchitectures consisting of nanocuboids and nanosheets for chemical sensors with enhanced performances[J]. Materials letters,2016,163: 236-239. [14] WANG X Q, ZHANG M F, LIU J Y, et al. Shape-and phase-controlled synthesis of In2O3 with various morphologies and their gas-sensing properties[J]. Sensors and actuators B: chemical ,2009, 137: 103-110. [15] LI Z P, FAN Y J, ZHAN J H. In2O3 nanofibers and nanoribbons: preparation by electrospinning and their formaldehyde gas-sensing properties[J]. European journal of inorganic chemistry, 2010(21): 3348-3353. [16] XIE Z, ZHU Y, XU J, et al. Porous WO3 with enhanced photocatalytic and selective gas sensing properties[J]. Crystengcomm ,2011, 13: 6393-6398. [17] SUN Z P, LIU L, ZHANG L, et al. Rapid synthesis of ZnO nano-rods by one-step, room-temperature, solid-state reaction and their gas-sensing properties[J]. Nanotechnology, 2011, 17: 2266-2270. [18] NIE L, YU J, LI X, et al. Enhanced performance of NaOH-modified Pt/TiO2 toward room temperature selective oxidation of formaldehyde[J]. Environmental science & technology, 2013,47: 2777-2783.

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更新日期/Last Update: 2016-12-23